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Old 05-01-2008, 06:57 PM   #1
Registered: Jul 2003
Location: Oshawa, Ontario, Canada
Distribution: ?????
Posts: 324

Rep: Reputation: 30
tv-out xrandr problem

Hi all. I've been away from linux for a very long time and it's good to be back. I was hoping someone could help me with my s-video tv-out problem.

I am using a widescreen toshiba laptop running xubuntu hardy with an ati-mobility radeon. I am using the open source ati drivers (my card is no longer supported by the proprietary ones). In order to enable tv-out I execute the following commands:

xrandr --addmode S-video 800x600
xrandr --output S-video --mode 800x600

The tv screen then turns from just black to black with which/grey lines flying all over it. My laptop screen experiences no change. I'm running compiz right now.

I have not edited my xorg.conf at all since install. Here is a copy of it.


# xorg.conf (X.Org X Window System server configuration file)
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"

Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "HorizEdgeScroll" "0"

Section "Device"
Identifier "Configured Video Device"


Section "Monitor"
Identifier "Configured Monitor"

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"

Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Synaptics Touchpad"

I'm really stumped by this. Any help at all would be appreciated.


Old 05-02-2008, 08:27 AM   #2
Registered: Jan 2006
Location: Finland
Distribution: Ubuntu
Posts: 51

Rep: Reputation: 15
I'm not sure how this applies to xubuntu but in Hardy Heron (8.04) I do the following.

On my Fujitsu-Siemens Amilo L1300 and Hitachi 32" I connect the TV to the vga out and then run "xrandr -q" this should show the VGA output to be connected.

After this I run the standard screen resolution under preferences and click "detect screens"... It might take a while and then I set the resolution for the TV to 1024x768 (I haven't been able to get it to accept a higher resolution).

I hope this points you in the right direction.


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